Warp-beam motion for looms.



C. VAN DEN HANDEL.

WARP BEAM monow FOR L'OOMS.

APPLICATION FILED AUG.5. 1914.

Patented Nov. 23, 1915.

2 SHEETS-SHEET l.

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WITNESSES.-

J\ BY iKi/z/g ATTORNEY.

\iOLl/MBIA PLANDGRAPN CO" WASHINGTON. D- C.

C. VAN DEN HANDEL.

WARP BEAM MOTION FOR LOOMS.

APPLICATION FILED AUG.5, 1914.

1 ,1 61,36%. Patented Nov. 23, 1915.

2 SHEETSSHEET 2.

WITNESSES- )NVEN TOR.

By M

ATTORNEY.

COLUMBIA PLANOURAPH c0. WASHINGTON, D. c.

tirvirnn e ra rrie rairrinr entree.

CORNELIUS VAN DEN HANDEL, OF PASSAIC, NEW JERSEY, ASSIGNOR OF ONE-THIRDT0 JOHN F. KERR, OF PATERSON, NEW JERSEY.

WARP-BEAM MOTION FOR LOOMS.

mer er Specification of Letters Patent.

Patented Nov. 23, 1915.

Application filed August 5, 1914.. Serial N 0. 855,292.

To all whom it may concern:

Be it known that I, Coluvnnrus VAN/DEN HANDEL, citizen of the UnitedStates, residing at 324 Montgomery street, in the city of Passaic, inthe county of Passaic and State of New Jersey, have invented certain newand useful Improvements in Warp-Beam Motion for Looms, of which thefollowing is a specification, reference beinghad therein to theaccompanying drawing.

My invention relates to improvements in looms for weaving silk or otherfabrics, and the objects of my invention are first, to avoid thenecessity of employing weights suspended on ropes which are wound aroundthe end of the warp-beam for the purpose of regulating motion thereof;second, to provide a uniform and adjustable resistance to the feed ofthe warp; and third to provide an adjustable take-up motion therefor.These objects are attained by the mechanism illustrated in theaccompanying drawings, in which Figure 1 is a view of a portion of therear end of a loom showing the improve ments attached thereto; Fig. 2 isa side elevation and partial section of Fig. 1; Figs. 3 and 4 aredetailed views of the brake attached to, or in operative position on theflanged beamhead or wheel on the end of the warp-beam; Figs. 5 and 6 aredetailed views of the brake-shoe; Figs. 7 and 8 are detailed views ofthe brake-arm; Fig. 9 is a sectional view of the take-up device alongits axis; Fig. 10 is a section on the line 1-2 of Fig. 9; Fig. 11 is atop view of the drum or rotating wheel which contains the spiral take-upspring; Fig. 12 is a front view of the supporting bracket, and Fig. 13is a side view of the same bracket.

Similar letters refer to similar parts throughout the several views.

The supply of warp W is wound upon the beam G and passes over the rollerI to the harness and reeds in the usual manner. The flanged head orwheel D'is firmly fixed to the end of the warp-beam Gr and to the shaft1 so that all rotate in unison. The shaft P rotates in the hole hof thebrake-arm B and in the opening r of the bracket C; the arm B issupported in the bracket C by the lug cl. The rounded por-' tion z, ofthe lug (Z on the brakearm B turns inside of the partially circularflange R, which forms a bearing therefor in the upper part of thebracket 0. The ends -0 and f of the flange R form stops to limit theupward and downward movement respectively of the brakearm- As the outerend of the brake-arm B ascends the upper edge of the projecting lug 0lengages the projecting end -0 of the flange R, and as it descends thelower edge of the projecting lug cl engages the other projecting end fof the flange R, thus limiting the swing of the outer end of thebrake-arm B when ascending or descending. On the lower edge ofthe-brake-arm B, near its outer extremity, is located an eye or loop 0to which'means is adapted to be secured for the purpose of drawing theouter end of the brake-arm B downwardly. A rope, cord, chain -79 or thelike, of any suitable material may be secured to the loop or eye 0, andmeans adapted to automatically wind up the cord -]9 and draw downwardlythe outer end of the brake-arm B, whenthe drag on the warp is released,is mounted in the loomframe below the flanged wheel D which is securedto the end of the warp-beam G.

The leather brake-shoeA is provided with a metal loop c-- which fitsover the bar Z of the brake-arm B and with a projecting metal lug -a-,which is bored for the bolt J which carries torsional spring K. The boltJ also passes through the projection 'w of the arm B, said projectionacting as a hold-back to the nut V. The shaft m is secured to the slot--gof the bracket C and carries the disk Z which is firmly fixed againstturning. The wheel L rotates on the shaft m and incloses the spiralspring M which is fixed at the one end to the disk Z and at the otherend to the hub of the wheel L. One end of the cord p is attached to therim of the wheel L and the other end is fixed to the lug 0 of thebrake-arm B.

My invention may be attached to any broad-silk loom or to any loom forweaving cotton or woolen goods with but a slight change in the form ofthe bracket which is secured to the loom-frame. It is a compact deviceand adds to the appearance of the loom and does away with the unsightlyand unwieldly rope and Weights.

The operation of my device is as-follows: As the warp l/V unwinds fromthe beam G it causes the beam to rotate in the direction of the arrow 3,as shown in Fig. 2. The resistance offered by the leather-shoe A,whichis forced against the face of the wheel or i flanged head D by thetorsion of the spring K, causes the brake-arm B to turn with the wheel Dand roller G for about one-fourth of a revolution, or until, the lug cZengages the projecting end c of the flange R on the upper end of thebracket C. The brake-arm B will then be approximately in its normalposition, occupied during the op eration of weaving, as shown in Fig. 2.The brake-arm B and the brake-shoe A which is securedthereto then ceaseto rotate with the flanged wheel D, which is secured to the warp-beam G;but the drag of the warp-threads cause the warp-beam G and the flangedwheel D to continue rotation while in frictional contact with thebrakeshoe A, thus controlling the tension and the delivery of thewarp-threads from the warpbeam. During the forward motion of the arm Bthe cord p causes the wheel L to rotate in a direction contrary to thearrow 4: as shown in Fig. 2, increasing the tension in the spiral springM.v Any further motion of the wheel D in the direction of the arrow 3must overcome the resistance of the brake-shoe A, which resistance canbe regulated by increasing or decreasing the pressure of the spring K bymeans of the bolt J. Should the tension of the warp W slacken the springM will cause the wheel L to rotate in the direction of the arrow 4 (seei the warp W.

Fig. 2), winding the cord p and drawing the arm B downward, causing thewheel D to turn against the direction of the arrow 3 (see Fig. 2)rewinding the slack of The downward movement of the outer end of thebrake-arm B will proceed until the lower edge of the lug -cZ strikes theprojecting end f of the partially circular flange R, when the downwardmovement of the outer end of the brakearm B will be arrested andstopped. This is the situation when the weaver at the front of the loomlets back the warp, thereby slackening the tension of the same for anydesired purpose and for any desired distance. When the weaver hasadjusted irreg ularities and takes up the warp, the drag on the warpwill rotate the warp-beam and brake-arm B and raise the outer end of thebrake-arm B again until it is approximately in the position shown inFig. 2. The tension of the wheel L may be regulated by putting anyinitial tension in the spring M previous to attaching the cord p.

With this description of my invention what I claim as new and desire tosecure by Letters-Patent, is

1. The combination with the warp-beam, shaft and fixed flanged headwhich rotate in unison, of a brake-arm having pivotal movement on saidshaft, a brake-shoe adjustably connected to the extremities of thebrake-arm and tending to rotate with the beam, means to regulate thefriction of the shoe on the face of the flanged head, and means to limitthe rotation of the arm.

2. In a loom, the combination with the warp-beam, shaft and fixedflanged head which rotate in unison, of a brake-arm pivotally mounted onsaid shaft, a brake-shoe adjustably connected to the extremities of thebrake-arm and tending to rotate with the beam in either direction, meansto regulate the friction of the shoe on the face of the flanged head,and means to limit the rotation of the brake-arm and shoe in eitherdirection.

3. In a loom, the combination with the warp-beam, brake'shoe andbrake-arm pivotally mounted on the beam-shaft, of means forautomatically causing the warp-beam to rotate in one direction when thedrag on the warp is released, and permitting the beam to rotate in theopposite direction when the drag on the warp is resumed, and meanslocated on the brake-arm to limit the swing of the brake-arm.

4:. In a loom, the combination of a warpbeam having a shaft and a fixedflanged head with a brake-arm pivotally mounted on said shaft, abrake-shoe adjustably secured to said brake-arm, means to regulate thefriction of the shoe on the face of the flanged head, means to cause thebrake-arm and brake-shoe to rotate with the beam when the drag on thewarp is released, means to limit the rotation of the brake-arm and shoe,a cord, or the like, attached to the end of the brake-arm and means towhich the other end of said cord is attached for automatically taking upsaid cord and causing the brake-arm and shoe and beam to rotate in onedirection, when the drag on the warp is released and for letting offsaid cord when the drag on the warp is resumed, and permitting thebrake-arm and shoe and beam to rotate in the opposite direction.

5. In a loom, the combination with the warp-beam, brake-shoe, andbrake-arm pivotally mounted on the beam-shaft, of a spring operatedrotatable drum having an operative connections between the latter and 10initial tension adapted to be automatically the brake.

augmented by the normal operation of the In testimony whereof I afiix mysignature loom and operative connections between the in presence of twowitnesses.

brake-arm and the drum.

6. In a loom, the combination with the CORNELIUS VAN DEN HANDEL'warp-beam, of a brake device therefor piv- WVitnesses: otally mounted onthe beam-shaft, a spring JOHN F. KERR, operated take-up and let0fi'mechanism, and BESSIE BERLINER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G."

